avg(elementSelector = identityFunction)
Returns the average of selected values.
Arguments
- elementSelector (function): function that must return the value to make the average, taking each element.
Returns
(Number): Average of the elements.
Example
Enumerable
.from(1, 2, 3)
.avg();
// 2
const people = [
{ username: 'Matteo', age: 19 },
{ username: 'foo', age: 8 },
{ username: 'bar', age: 27 },
];
Enumerable
.from(people)
.avg(x => x.age);
// 18